Concealed hinge



soss CONCEALED HINGE Nov. 19, 1935.

Filed Nov. 28, 1934 I mvzm'oa v Joan /1 $053 .ATTORNEY and claimed.

Patented Nov. 19, 1935 UNITED STATES PATENT OFFICE CONCEALED HINGE Joseph S0ss, Roselle, N. J.

Application November 28, 1934, Serial No. 755,091 Claims. (01. 16-164) This invention relates to concealed hinges and particularly to the provision of an improved sheet metal butt structure for hinges of this class; and the object of the invention is to provide a sheet metal hinge butt with means constituting a unit part of the butt for forming greater bearing surfaces for the pivot or pintle pins of the hinge within the butt to reinforce and strengthen the mounting of the links of the hinge or the link unit in the respective butts; and with these and other objects in view, the invention consists in a hinge of the class and for the purpose specified which is simple in construction, efiicient in use and which is'constructed as hereinafter described The invention is fully disclosed in the following specification, of which the accompanying drawing forms a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which: j

Fig. l is a face view of a hinge made according to my invention with the butts in open position.

Fig. 2 is a section on the line 2-2 of Fig. 1.

Fig. 3 is a view similar to Fig. 2 showing the butts in closed position and on an enlarged scale; and,

Fig. 4 is, a perspective view of one part of a hinge butt made according to my invention.

My invention relates to what are. commonly termed concealed hinges and particularly to hinges of this type employing sheet metal butts with a link unit for hingedly coupling the butts together. While the invention may be confined to single butt elements employing single link units, I have illustrated in Fig. 1 of the drawing a hinge consisting of two elongated'sheet metal butts 5, So having a pair of offset housings 6 disposed at the end portions thereof. One of the housings of the butt 5a is omitted. The pair of housings 6 are joined together and spaced apart by a long distance piece or strip I which serves to definitely space and aiine the pair of housings. on each butt one with the other, and especially the alinement of the link units 8 in connection therewith. The upper link unit 8 only is shown in the drawing in order to simplify the showing.

In that the butts are of the same form and construction and in that each housing is.of the same form and. construction, the brief description ofone is applied to the other, and like references will indicate like parts. Each housing 6 includes an offset back wall 9, one side of which is provided with two cut-outs l0 and H which are alternately arranged on opposed housings of the hinge butts as may be seen on a consideration of the upper portion of Fig. 1 of the drawing. The side edge of the wall 9 having the cutouts I I formed therein also includes extending 6 strips which are folded inwardly and shaped to form outer and inner cylindrical bearings l2 and I3 disposed in common alinement one above the other. In these bearings are mounted pivot or pintle pins l4 and I5 respectively which also extend into and are secured in the end walls of the housings 6 by being riveted over or otherwise as indicated in dotted lines at I 6 in Fig. 1 of the drawing.

The link unit 8 consists of long links I! and short links Hi, the long links being mounted on the pins l4 whereas the short links are mounted on the pins IS. The free ends of the links l8 are pivoted to the ends of the links I] as seen at l9, and the links I! are pivoted together as seen at 20. In the construction shown, each of the links l1, I8 is composed of a plurality of thin plates forming a laminated link, the pur-% pose of which construction is to provide a simpler and more economical method of constructing the link in providing. links of comparatively great width, thus increasing the bearing area of the respective links on their pivot or hingepins. It will be understood in this connection that the question of price is not a factor. The links may be formed from solid strips of material, forged, cast, milled or otherwise formed.

In the assemblage of the link unit 8 in the opposed butts of the hinge, it will appear that the central bearings Ill-l3 are of the same width 2 as the width of the opposed links, whereas the wide and bearings I2, I 3 at the upper portion of the left side of Fig. 1 and lower portion of the right side of Fig. 1 are slightly wider than the links to compensate for the opposed narrow bearings l2, l3 which are employed, primarily to add greater length to the bearing surface of the pins l4 and i5 in the adjacent side wall of the butt housing 6.

The bearings l2, l3 in addition to the function 5;

of reinforcing the mounting of the pins l4 and IS in the respective butt parts, also act as bushings to space the links one from..the otherwithin said butts. By virtue of the manner of formingthe bearings I 2 and I3, comparatively wide surface areas are provided therefor. In this connection, it will be understood that the free edge of the strip forming the bearings l2, l3 where it engages the back wall 9 of the housing 6 as is indic'atedat. Quin Figs. 2, 3 and t of the drawstruction, the cross sectional contour of the bearings l2 and I3 is suillcient to give the desired strength and rigidity thereto without any additional securing means. The outer ends of the links I8 are fashioned to form fiat surfaces [8a to conform with a seat on the side surface of the adjacent link II when the hinge is in open positlon to form a stop or partial stop as may be seen at the right of Fig.2 of the drawing. However, it will appear that'where the hinges are employed in connection with motor vehicle doors having the conventional door checks, this feature is not of importance except as a safety catch or stop.

With my improved butt construction, a concealed hinge having the greatest possible strength and durability can be produced at a very nominal cost, permitting the use of hinges of this type where the use thereof would otherwise'be prohibitive by reason of costs, and at the same time, providing the strength and. rigidity which is necessary to perform the desired hinge functioning. It will appear that while links of predeterminedperipheral contour have been disclosed, this is merely to illustrate one particular form of hinge, it being further apparent that the contour of the butt or butt housings will be characterized to suit the particular hinge employed. The present invention deals with a hinge of compact design wherein the two housings including the hinge unit when collapsed occupy a comparatively small amount of space in the door and door frame or other supports to whichthe hinge butts are attached.

-Having fully described my invention, what I claim as new and desire to secure by Letters 'Patent, is:

l. A concealed hinge of the class described comprising a link unit consisting of a plurality of relatively movable links, sheet metal hinge butt housings coupled together for hinge movement one with respect to the other by said link unit, the link unit including pintle pin mountings in the respective butt housings, the sheet metal at one side edge of each butt housing being fashioned to form pairs of cylindrical pintle bearings spaced longitudinally of said housings and engaging the pintle pins intermediate the links 3 disposed thereon to provide link bearings for the pintle pins in said housings, and the pintle bearings in each pairbeing arranged in close proximity. to each other.

2.A concealed hinge of the class described comprising a link unit consisting of a plurality of relatively movable links, sheet metal hinge butt housings coupled together for hinge movement one with respect to the other by said link unit,

the link unit including pintle pin mountings in the respective. butt housings, the sheet metal at one side edge of each butt housing being fashioned to form pairs of cylindrical pintle bearings spaced longitudinally of said housings and engaging the pintle pins, intermediate the links disposed thereon to provide link bearings for the pintle pins in said housings, the pintle bearings in each pair being arranged in close proximity to each other, and the hinge comprising pairs of butt housings, the housings in each pair being joined by relatively long integral attaching 5 plate portions spacing said butt housings and maintaining the pintle bearings thereof in longitudinal alinement.

3. In a concealed hinge of the class described, a sheet metal hinge butt fashioned to form an 10 offset housing portion, one side edge of the back wall of said housing portion having spaced link receiving recesses, that part of said back wall intermediate said recesses having a pair of cylindrical pintle bearings, and the pintle bearings in said pair being arranged in close proximity to each other.

4. In a concealed hinge of the class described, a sheet metal hinge butt fashioned to form an offset housing portion, one side edge of the back wall of said-housing portion having spaced link receiving recesses, that part of saidback wall intermediate said recesses having a pair of cylindrical pintle bearings, the pintle bearings in said pair being arranged in close proximity to each other, and said side edge of the back wall having another pair of cylindrical pintle bearings .arranged at'one side of one of the recesses in said each other, said side edge of the back wall having 40 another pair of cylindrical pintle bearings arranged at one side of one of the recesses in said wall, the pintle bearings in said pair being arranged in alinement with the pintle bearings of the first named pair, and said pintle bearings being disposed within the boundaries of the housing formed by said back and end walls.

6. In a concealed hinge of the class described, a sheet metal hinge butt fashioned to form an offset-housing portion, one side edge of the back wall of said housing portion having spaced link receiving recesses, that part of said back wall intermediate said recesses having a pair of cylindrical pintle bearings, the pintle bearings in said pair being arranged in close proximity to each other, said side edge of the back wall having another pair of cylindrical pintle bearings arranged at one side of one of the recesses in said wall, the pintle hearings in said pair being arranged in alinement with the pintle bearings of the first named pair, each pair of pintle bearings terminating in a free edge portion, and means for securing said edge portion to the back wall of the housing.

- JOSEPH SOSS. 

